This zip file contains CAD files for the following:

75mm Type 6.4 Linear Sensor, part number 013-0036_0001:

033_2012_0001_(75mm_Type6-4_Sensor_3D).STEP

This file is in 3D STEP format, showing the exterior features only, at nominal dimensions.

These files are provided for convenience.  The part's datasheet remains the authoratitive reference.